[Bug 60879] [radeonsi] X11 can't start with acceleration enabled

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=60879

--- Comment #148 from Marek Olšák  ---
What I had thought was incorrect kernel code is actually correct and hw folks
confirmed it. To be completely honest with you, I have absolutely no idea why
Tahiti LE driver support is broken.

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--- Comment #147 from madmalkav  ---
Created attachment 122244
  --> https://bugs.freedesktop.org/attachment.cgi?id=122244&action=edit
Dmesg from the boot I took the debug dump

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--- Comment #146 from Marek Olšák  ---
You don't have to run the tests. Dmesg after boot is sufficient.

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--- Comment #145 from Marek Olšák  ---
Can you please attach dmesg with the patch?

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--- Comment #144 from madmalkav  ---
Created attachment 122240
  --> https://bugs.freedesktop.org/attachment.cgi?id=122240&action=edit
Dump with Marek patch

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--- Comment #143 from Marek Olšák  ---
Created attachment 15
  --> https://bugs.freedesktop.org/attachment.cgi?id=15&action=edit
possible fix

Can you test the attached patch?

How to build the kernel:
- use "git clone" to get the kernel source
- go to the kernel directory
- git am $patch_filename # apply the patch
- cp /boot/config-`uname -r` .config # copy your current kernel config
- make -j4
- sudo make modules_install
- sudo make install

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--- Comment #142 from Marek Olšák  ---
CP works. Shaders don't work. The hardware hangs in the vertex shader. The draw
call doesn't even enable the rasterizer.

radeon/si.c:si_setup_spi looks very wrong to me:
- The function sets SPI_STATIC_THREAD_MGMT_3, which only configures CUs for LS
and HS stages.
- I don't understand why SPI_STATIC_THREAD_MGMT_3 is set 16 times?
- SPI_STATIC_THREAD_MGMT_1 (PS,VS) and SPI_STATIC_THREAD_MGMT_2 (GS,ES) are not
set at all.

It looks like that's the root cause of this bug.

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--- Comment #141 from madmalkav  ---
Created attachment 122212
  --> https://bugs.freedesktop.org/attachment.cgi?id=122212&action=edit
Mesa debug file after tests with Marek on the IRC

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madmalkav  changed:

   What|Removed |Added

 CC||aprzywecki at yahoo.ca

--- Comment #140 from madmalkav  ---
*** Bug 71689 has been marked as a duplicate of this bug. ***

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--- Comment #139 from madmalkav  ---
Thanks for the great explanation, Marek. I will try to start tests today but
probably I won't have enough time until weekend.





On Thu, Mar 10, 2016 at 2:01 AM -0800,  
wrote:





https://bugs.freedesktop.org/show_bug.cgi?id=60879

--- Comment #138 from Marek Olšák  ---
I don't think we should use X if we know that the GPU driver is totally broken.
Piglit should be used for such testing.

How to build it:

1) Mesa should be built with:
--with-egl-platforms=x11,drm
This is also required for X acceleration, so it should be set already.

2) Build and install waffle:
git://github.com/waffle-gl/waffle

3) Build piglit (no install):
https://cgit.freedesktop.org/piglit/
Configure it with ccmake and enable waffle.


How to get ready:
1) Boot with the "text" kernel parameter (disables X) and also add
"radeon.lockup_timeout=0" to prevent the kernel driver from trying to recover
from GPU hangs.
2) Go to the piglit/bin directory.
3) Type: export PIGLIT_PLATFORM=gbm


Tests to run:

1) If this works, most things will work:
./fbo-generatemipmap-formats -auto

2) Something simpler:
./ext_transform_feedback-position -auto

3) You can invoke very simple internal driver tests by setting GALLIUM_TESTS=1.
This will exit before the program can do something, so the executable doesn't
matter. For example:
GALLIUM_TESTS=1 ./ext_transform_feedback-position


Diagnosing GPU hangs:

If the GPU hangs during these tests, you can see errors in dmesg. I recommend
using radeontop for overview of which GPU hw blocks are busy. If some blocks
report 100% activity for no reason, they are stuck.

Which blocks are stuck is the first piece of information we need to know. Then,
we need to know if any internal driver tests pass if you run something with
GALLIUM_TESTS=1 (see above).

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[Bug 60879] [radeonsi] X11 can't start with acceleration enabled

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--- Comment #138 from Marek Olšák  ---
I don't think we should use X if we know that the GPU driver is totally broken.
Piglit should be used for such testing.

How to build it:

1) Mesa should be built with:
--with-egl-platforms=x11,drm
This is also required for X acceleration, so it should be set already.

2) Build and install waffle:
git://github.com/waffle-gl/waffle

3) Build piglit (no install):
https://cgit.freedesktop.org/piglit/
Configure it with ccmake and enable waffle.


How to get ready:
1) Boot with the "text" kernel parameter (disables X) and also add
"radeon.lockup_timeout=0" to prevent the kernel driver from trying to recover
from GPU hangs.
2) Go to the piglit/bin directory.
3) Type: export PIGLIT_PLATFORM=gbm


Tests to run:

1) If this works, most things will work:
./fbo-generatemipmap-formats -auto

2) Something simpler:
./ext_transform_feedback-position -auto

3) You can invoke very simple internal driver tests by setting GALLIUM_TESTS=1.
This will exit before the program can do something, so the executable doesn't
matter. For example:
GALLIUM_TESTS=1 ./ext_transform_feedback-position


Diagnosing GPU hangs:

If the GPU hangs during these tests, you can see errors in dmesg. I recommend
using radeontop for overview of which GPU hw blocks are busy. If some blocks
report 100% activity for no reason, they are stuck.

Which blocks are stuck is the first piece of information we need to know. Then,
we need to know if any internal driver tests pass if you run something with
GALLIUM_TESTS=1 (see above).

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[Bug 60879] [radeonsi] X11 can't start with acceleration enabled

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https://bugs.freedesktop.org/show_bug.cgi?id=60879

--- Comment #137 from madmalkav  ---
I have been testing and commenting my results on the IRC channel, didn't
mention anything here as nothing interesting happened.

Blacklisting the module bears no difference. I can upload logs if needed but
they are the same just without the fglrx lines.

Also, I'm trying to repeat the tests of the user in comment #104 but I'm
totally unable to get any debug message I insert in si_state.c to show on any
log. Any tips or a link to some form of "Mesa debugging for dummies" will be
gladly appreciate.

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--- Comment #136 from benli1392 at gmail.com ---
It is great that there is a bounty, but the developers are actually asking for
more information to actually be able to solve the problem.

madmalkav, I think Marek is asking you to blacklist the fglrx driver
temporarily at boot up so that the system reverts to the open source drivers if
those drivers haven't been blacklisted already.

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--- Comment #135 from Vedran Miletić  ---
(In reply to madmalkav from comment #133)
> I've set up a bounty for fixing this bug. Quantity is quite low, sorry. If
> anyone else affected by this bug can throw some bucks into this, I think it
> can help to get a solution sooner.
> 
> https://www.bountysource.com/issues/5643054-radeonsi-x11-can-t-start-with-
> acceleration-enabled

I have upped it to $100. I know this is very low amount of money for the amount
of skill required to fix something like this, but I still hope that it will
motivate someone.

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[Bug 60879] [radeonsi] X11 can't start with acceleration enabled

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--- Comment #134 from Marek Olšák  ---
(In reply to madmalkav from comment #131)
> (In reply to John Bridgman from comment #130)
> > madmalkav, your dmesg log had messages from the fglrx kernel driver... not
> > saying that *is* your problem but it definitely can't help... any chance you
> > can test on a vanilla system that hasn't had fglrx installed ?
> > 
> > [9.614226] <6>[fglrx] Maximum main memory to use for locked dma buffers:
> > 7714 MBytes.
> > [9.614510] <6>[fglrx]   vendor: 1002 device: 679e revision: 0 count: 1
> > [9.615005] <6>[fglrx] ioport: bar 4, base 0xe000, size: 0x100
> > [9.615248] <6>[fglrx] Kernel PAT support is enabled
> > [9.615263] <6>[fglrx] module loaded - fglrx 15.20.3 [Sep  8 2015] with 1
> > minors
> 
> I can't at the moment as I need this computer for working. I can tell you
> the system had problems with OSS driver since minute 1, i.e. I had to use
> the option to use a kernel with propietary drivers in order to manage to
> install Linux in this machine.

You should at least set modprobe.blacklist=fglrx on the kernel command line.

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--- Comment #133 from madmalkav  ---
I've set up a bounty for fixing this bug. Quantity is quite low, sorry. If
anyone else affected by this bug can throw some bucks into this, I think it can
help to get a solution sooner.

https://www.bountysource.com/issues/5643054-radeonsi-x11-can-t-start-with-acceleration-enabled

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Michel D�nzer  changed:

   What|Removed |Added

 CC|michel at daenzer.net  |

--- Comment #132 from Michel D�nzer  ---
I get updates to this report via the dri-devel mailing list, please don't add
me to the CC list.

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--- Comment #131 from madmalkav  ---
(In reply to John Bridgman from comment #130)
> madmalkav, your dmesg log had messages from the fglrx kernel driver... not
> saying that *is* your problem but it definitely can't help... any chance you
> can test on a vanilla system that hasn't had fglrx installed ?
> 
> [9.614226] <6>[fglrx] Maximum main memory to use for locked dma buffers:
> 7714 MBytes.
> [9.614510] <6>[fglrx]   vendor: 1002 device: 679e revision: 0 count: 1
> [9.615005] <6>[fglrx] ioport: bar 4, base 0xe000, size: 0x100
> [9.615248] <6>[fglrx] Kernel PAT support is enabled
> [9.615263] <6>[fglrx] module loaded - fglrx 15.20.3 [Sep  8 2015] with 1
> minors

I can't at the moment as I need this computer for working. I can tell you the
system had problems with OSS driver since minute 1, i.e. I had to use the
option to use a kernel with propietary drivers in order to manage to install
Linux in this machine.

If any other option can be valid -booting the installer media with the OSS
driver or installing a kernel without the fglrx module- I'll gladly try that.
If not, I will try to format the system and do vanilla tests as soon as
possible.

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--- Comment #130 from John Bridgman  ---
madmalkav, your dmesg log had messages from the fglrx kernel driver... not
saying that *is* your problem but it definitely can't help... any chance you
can test on a vanilla system that hasn't had fglrx installed ?

[9.614226] <6>[fglrx] Maximum main memory to use for locked dma buffers:
7714 MBytes.
[9.614510] <6>[fglrx]   vendor: 1002 device: 679e revision: 0 count: 1
[9.615005] <6>[fglrx] ioport: bar 4, base 0xe000, size: 0x100
[9.615248] <6>[fglrx] Kernel PAT support is enabled
[9.615263] <6>[fglrx] module loaded - fglrx 15.20.3 [Sep  8 2015] with 1
minors

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--- Comment #129 from summerrainbowz101 at gmail.com ---
Just wondering guys, is there really nothing that can be done in order to fix
this issue?

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--- Comment #128 from madmalkav  ---
Created attachment 121634
  --> https://bugs.freedesktop.org/attachment.cgi?id=121634&action=edit
Xorg.0.log

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--- Comment #127 from madmalkav  ---
Created attachment 121633
  --> https://bugs.freedesktop.org/attachment.cgi?id=121633&action=edit
Dmesg Kernel 4.5RC3

Demseg Kernel 4.5RC3

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madmalkav  changed:

   What|Removed |Added

 CC||myhateisblind at hotmail.com

--- Comment #126 from madmalkav  ---
I can confirm same problem with Tahiti LE. Mesa 11.1.1-1 from Manjaro Linux
repository.

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--- Comment #125 from benli1392 at gmail.com ---
I forgot to link the pictures I took of the graphical corruptions.
First picture:
http://i65.tinypic.com/5xlxj9.jpg

Second Picture:
http://i68.tinypic.com/2yv9k3l.jpg

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--- Comment #124 from benli1392 at gmail.com ---
Created attachment 120011
  --> https://bugs.freedesktop.org/attachment.cgi?id=120011&action=edit
Xorg.0.log with kernel 4.2 with Tahiti fix v2 patch

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--- Comment #123 from benli1392 at gmail.com ---
Created attachment 120010
  --> https://bugs.freedesktop.org/attachment.cgi?id=120010&action=edit
dmesg.log with kernel 4.2 with Tahiti fix v2 patch

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--- Comment #122 from benli1392 at gmail.com ---
Thanks summerrainbowz, I had no idea that was supposed to be for the Kernel. I
can also confirm summerrainbowz's results. My dmesg output looks different
though.

My setup current is Fedora 23. I compiled and installed mesa, xf86-video-ati,
and drm from git master. I also applied the "Tahiti fix v2" patch to vanilla
Kernel 4.2 to test. Kernel config settings were identical to Fedora's config. I
took out nomodeset from grub boot parameters when testing as well. I am
uploading the attached Xorg and dmesg logs.

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--- Comment #121 from summerrainbowz101 at gmail.com ---
AFAIK the patch has to be applied to the linux kernel, not to mesa. That's how
I did it after all, but it didn't seem to fix the issue.
I'm using Arch Linux btw, so I had to a command to the PKGBUILD in order to
apply the patch during the build process.

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--- Comment #120 from benli1392 at gmail.com ---
Hi, I was the person who reported Bug 92518 and I switched to Fedora 23 to try
and compile drm, xf86-video-ati, and mesa from the git master.

I am assuming the "Tahiti fix v2" patch is for mesa, but I have no idea how to
apply the patch. After some googling, I guess I am supposed to use:
git-apply --directory=

The problem is that in the patch, I am supposed to look for a path to the file
called a/drivers/gpu/drm/radeon/si.c, but that file si.c does not exist in the
mesa tree when I ran the command:
find  si.c

I need some help with this so that I can test the patch.

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--- Comment #119 from summerrainbowz101 at gmail.com ---
Created attachment 119985
  --> https://bugs.freedesktop.org/attachment.cgi?id=119985&action=edit
v2 patch dmesg

No dice with patch, attached another dmesg. Maybe I applied the patch wrong?

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Michel Dänzer  changed:

   What|Removed |Added

  Attachment #98258|0   |1
is obsolete||

--- Comment #118 from Michel Dänzer  ---
Created attachment 119959
  --> https://bugs.freedesktop.org/attachment.cgi?id=119959&action=edit
Tahiti fix v2

Does this help on 7870 XT?

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Michel Dänzer  changed:

   What|Removed |Added

 Status|RESOLVED|REOPENED
 Resolution|FIXED   |---

--- Comment #117 from Michel Dänzer  ---
Based on the latest duplicates, this still doesn't seem fixed for Tahiti XT. :(

I'll attach a v2 of the Tahiti kernel fix.

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Michel Dänzer  changed:

   What|Removed |Added

 CC||toojays at toojays.net

--- Comment #116 from Michel Dänzer  ---
*** Bug 87728 has been marked as a duplicate of this bug. ***

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Michel Dänzer  changed:

   What|Removed |Added

 CC||benli1392 at gmail.com

--- Comment #115 from Michel Dänzer  ---
*** Bug 92518 has been marked as a duplicate of this bug. ***

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Michel Dänzer  changed:

   What|Removed |Added

 CC||summerrainbowz101 at gmail.com

--- Comment #114 from Michel Dänzer  ---
*** Bug 93023 has been marked as a duplicate of this bug. ***

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--- Comment #113 from Alex Deucher  ---
(In reply to madcatx from comment #112)
> Is there any chance of this getting backported to stable 10.3 series? The v5
> fix works fine for me with 10.3.3.

Yes, it should show up in the stable releases.  From the commit message:

CC: "10.4 10.3" 

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--- Comment #112 from madcatx at atlas.cz ---
Is there any chance of this getting backported to stable 10.3 series? The v5
fix works fine for me with 10.3.3.

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Pali Rohár  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #111 from Pali Rohár  ---
Looks like patch was commited to mesa git:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=67dcbcd92cb9877a04747d6cf7fef14c2b8af8b3

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--- Comment #110 from Pali Rohár  ---
Michel Dänzer: is this patch going to be included in mesa git?

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--- Comment #109 from Michel Dänzer  ---
(In reply to madcatx from comment #107)
> (Is there any reason why would the desktop animations feel much smoother and
> snappier than with the old hackofix?)

Sounds like the 'hackofix' disabled more SEs than necessary, so the card wasn't
running as fast as it can.

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--- Comment #108 from madcatx at atlas.cz ---
Created attachment 108412
  --> https://bugs.freedesktop.org/attachment.cgi?id=108412&action=edit
glxgears output with "Fix v5" in place on 7730 LE

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--- Comment #107 from madcatx at atlas.cz ---
I finally updated to pre-release Fedora 21 which packages mesa 10.3. The "v5
fix" seems to work OK with my 7730 LE (Verde chip). glxgears output attached.

(Is there any reason why would the desktop animations feel much smoother and
snappier than with the old hackofix?)

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?ukasz Krzy?ak  changed:

   What|Removed |Added

 Attachment #106562|0   |1
is obsolete||

--- Comment #106 from ?ukasz Krzy?ak  ---
Created attachment 107323
  --> https://bugs.freedesktop.org/attachment.cgi?id=107323&action=edit
kernel log with tahiti-fix after starting and killing Xorg.bin

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?ukasz Krzy?ak  changed:

   What|Removed |Added

 Attachment #106563|0   |1
is obsolete||

--- Comment #105 from ?ukasz Krzy?ak  ---
Created attachment 107322
  --> https://bugs.freedesktop.org/attachment.cgi?id=107322&action=edit
startx out with -verbose 9, fix v5 + printf's

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--- Comment #104 from ?ukasz Krzy?ak  ---
I've tested tahiti-fix.patch for kernel with version 3.16-3, it does not help.
I've added debug info to it:

radeonsi cgts_tcc_disable: -268435456

that's the value of register for my card.

patch v5 also doesn't resolve problem, after adding additional prinf's it seems
that si_init_config goes into:

if (rb_mask && util_bitcount(rb_mask) >= num_rb) {

so si_write_harvested_raster_configs is not called

after commenting out that if, xorg logs from si_write_harvested_raster_configs
shows:

Original raster_config = 0x2a00126a, rb_mask = 0xff

attachments:
- startx-0410-2.out - output of startx with -verbose 9, tahiti-fix kernel,
mesa-git (c74be01e80fcdd7feabc0f27df4aebe66abb626e) with patchv5 + additional
fprintf's
- kernel-0410-2.out - dmesg, additional debug in tahiti-fix: radeonsi
cgts_tcc_disable

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--- Comment #103 from Michel D?nzer  ---
(In reply to comment #102)
> > Should I apply Tahiti Fix
> > (https://bugs.freedesktop.org/attachment.cgi?id=98258) to my kernel ?
> 
> Sure.

Tom, did you see comment 78?

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--- Comment #102 from Tom Stellard  ---
(In reply to comment #101)
> I'll verify library paths and attach x logs/outs with patch v5
> 
> Should I apply Tahiti Fix
> (https://bugs.freedesktop.org/attachment.cgi?id=98258) to my kernel ?

Sure.

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--- Comment #101 from ?ukasz Krzy?ak  ---
I'll verify library paths and attach x logs/outs with patch v5

Should I apply Tahiti Fix
(https://bugs.freedesktop.org/attachment.cgi?id=98258) to my kernel ?

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--- Comment #100 from Tom Stellard  ---
(In reply to comment #98)
> ?ukasz, can you attach (as opposed to paste) the startx output with patch v5?
> 
> Tom, BTW, what happened to your kernel patches?

I don't think the user with the bad Tahiti ever tested them.

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--- Comment #99 from Tom Stellard  ---
(In reply to comment #97)
> Mesa-git with patch v4
> startx output:

Are you sure that your X server is using mesa-git and not your system Mesa?
I don't see any of the printfs from the patch in your output.

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--- Comment #98 from Michel D?nzer  ---
?ukasz, can you attach (as opposed to paste) the startx output with patch v5?

Tom, BTW, what happened to your kernel patches?

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--- Comment #97 from ?ukasz Krzy?ak  ---
Mesa-git with patch v4
startx output:

 X.Org X Server 1.16.0
Release Date: 2014-07-16
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.15.5-2-ARCH x86_64
Current Operating System: Linux pecet 3.16.2-1-ARCH #1 SMP PREEMPT Sat Sep 6
13:12:51 CEST 2014 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-linux
root=UUID=b02f6229-160f-4999-9979-82f4e15dacff rw quiet
Build Date: 31 July 2014  11:53:19AM

Current version of pixman: 0.32.6
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Sep 20 02:13:24 2014
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(II) [KMS] Kernel modesetting enabled.

Screen stays blank and on

After kill -9 on Xorg.bin:

 [root at pecet ~]# kill -9 425[root at pecet ~]# XIO:  fatal IO error 2 (No 
such
file or directory) on X server ":0"
  after 18 requests (18 known processed) with 0 events remaining.
xset:  unable to open display ":0"
xsetroot:  unable to open display ':0'
startkde: Starting up...
xprop:  unable to open display ':0'
xprop:  unable to open display ':0'
Connecting to deprecated signal
QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
kdeinit4: Can not connect to the X Server.
kdeinit4: Might not terminate at end of session.
QDBusConnection: session D-Bus connection created before QCoreApplication.
Application may misbehave.
QDBusConnection: session D-Bus connection created before QCoreApplication.
Application may misbehave.
kded4: cannot connect to X server :0
kded(476): Communication problem with  "kded" , it probably crashed.
Error message was:  "org.freedesktop.DBus.Error.NoReply" : " "Message did not
receive a reply (timeout by message bus)" "

kcminit_startup: cannot connect to X server :0
unnamed app(481): Cannot connect to the X server
ksmserver: cannot connect to X server :0
startkde: Shutting down...
klauncher: Exiting on signal 1
startkde: Running shutdown scripts...
xprop:  unable to open display ':0'
xprop:  unable to open display ':0'
startkde: Done.

and monitor turns off
Dmesg output:
  243.740994] radeon :01:00.0: ring 0 stalled for more than 211963msec 
243.741009] radeon :01:00.0: GPU lockup (waiting for 0x0003
last fence id 0x0001 on ring 0)

Second run of startx causes hard hangup - monitor turns on, startx output ends
with KMS Kernel mode setting enabled, after few seconds monitor disables and
system stops responding to ssh

Mesa-git built from master with options:
./autogen.sh --prefix=/usr \ --sysconfdir=/etc \
 --with-dri-driverdir=/usr/lib/xorg/modules/dri \
 --with-gallium-drivers=radeonsi \
 --with-dri-drivers=radeon \
 --with-egl-platforms=x11,drm,wayland \
 --enable-llvm-shared-libs \
 --disable-gallium-egl \
 --disable-gallium-gbm \
 --enable-egl \
 --enable-gbm \
 --enable-gallium-llvm \
 --enable-shared-glapi \
 --enable-glx-tls \
 --enable-dri \
 --enable-glx \
 --enable-osmesa \
 --enable-gles1 \
 --enable-gles2 \
 --enable-texture-float \
 --enable-xa \
 --enable-vdpau \
 --enable-xvmc \
 --enable-dri3 \
 --enable-omx \
 --enable-opencl \
 --enable-opencl-icd \
 --with-clang-libdir=/usr/lib

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--- Comment #96 from Tom Stellard  ---
What happens if you try only this patch:
https://bugs.freedesktop.org/attachment.cgi?id=106097

Also do you see any output when you start X?  The best way to check is to ssh
into the system and then run startx.

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--- Comment #95 from ?ukasz Krzy?ak  ---
Created attachment 106563
  --> https://bugs.freedesktop.org/attachment.cgi?id=106563&action=edit
xorg.log with mesa-git and patch 5

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--- Comment #94 from ?ukasz Krzy?ak  ---
Created attachment 106562
  --> https://bugs.freedesktop.org/attachment.cgi?id=106562&action=edit
kernel logs with patch v5

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--- Comment #93 from ?ukasz Krzy?ak  ---
Hello
I've got Radeon HD 7870 XT running under arch linux. It works fine on catalyst
drivers, but fails on OS driver.
Without patches from this bug (patch 3&4 or 5) my computer hangs. Signal to
monitor is off and monitor suspends, logging through ssh is impossible, system
logs are cut before launching X.
After applying patch (3&4 or 5) screen goes black, but monitor doesn't go to
suspend. I can log in with ssh, after killing Xorg.bin console is visible and
operational. Aftr killing X kernel logs show 

 1868.387061] radeon :01:00.0: ring 0 stalled for more than 395470msec
[ 1868.387066] radeon :01:00.0: GPU lockup (waiting for 0x0005
last fence id 0x0001 on ring 0)
[ 1868.695731] [drm:si_dpm_set_power_state] *ERROR* si_disable_ulv failed

Stack trace of running X shows it's waiting for some fence inside radeon dri.
I'm attaching dmesg and xorg log after starting and killing X server with patch
5.

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Tom Stellard  changed:

   What|Removed |Added

 Attachment #106097|0   |1
is obsolete||
 Attachment #106113|0   |1
is obsolete||

--- Comment #92 from Tom Stellard  ---
Created attachment 106530
  --> https://bugs.freedesktop.org/attachment.cgi?id=106530&action=edit
Fix v5

Can you try this patch?  I've merged Michel's patch with mine and it works on
my Verde.

Even if this patch works for you could you still post the output when running
glxgears?

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--- Comment #91 from Michel D?nzer  ---
Created attachment 106113
  --> https://bugs.freedesktop.org/attachment.cgi?id=106113&action=edit
Another approach

If Tom's v4 patch doesn't work, you can try this patch on top of it. If that
still doesn't work, please provide the stderr debugging output about
raster_config.

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Tom Stellard  changed:

   What|Removed |Added

 Attachment #106006|0   |1
is obsolete||

--- Comment #90 from Tom Stellard  ---
Created attachment 106097
  --> https://bugs.freedesktop.org/attachment.cgi?id=106097&action=edit
Fix v4

Here is an updated patch that addresses Michel's comments.

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--- Comment #89 from Michel D?nzer  ---
(In reply to comment #88)
> Is this patch supposed to apply cleanly against mesa 10.1.5?

No, looks like it's for Git master, should probably apply against the 10.3
branch at least though.


(In reply to comment #87)
> Fix v3
[...]
> + for (i = 0; i < num_se; i++) {
> + si_pm4_set_reg(pm4, GRBM_GFX_INDEX,
> + SE_INDEX(i) |
> + SH_BROADCAST_WRITES |
> + INSTANCE_BROADCAST_WRITES);
> + si_pm4_set_reg(pm4, R_028350_PA_SC_RASTER_CONFIG, 
> raster_config);
> + }

Since this uses the same raster_config value for all SEs, couldn't it just use
a single write with SE_BROADCAST_WRITES enabled in GRBM_GFX_INDEX?

If not:

> + unsigned sh_per_se = MAX2(sctx->screen->b.info.max_sh_per_se, 
> 1);
> + unsigned num_se = MAX2(sctx->screen->b.info.max_sh_per_se, 1);

sh_per_se and num_se have the same value. Should one of them be calculated
differently, or does a single variable suffice?

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--- Comment #88 from madcatx at atlas.cz ---
Is this patch supposed to apply cleanly against mesa 10.1.5? I'm getting the
following build error:


In file included from ../../../../src/gallium/auxiliary/util/u_inlines.h:41:0,
 from
../../../../src/gallium/auxiliary/pipebuffer/pb_buffer.h:49,
 from ../../winsys/radeon/drm/radeon_winsys.h:43,
 from si_pm4.h:30,
 from si_state.h:30,
 from si_pipe.h:29,
 from si_state.c:27:
si_state.c: In function 'si_init_config':
si_state.c:3291:49: error: 'struct radeon_info' has no member named
'max_sh_per_se'
   unsigned sh_per_se = MAX2(sctx->screen->b.info.max_sh_per_se, 1);
 ^
../../../../src/gallium/auxiliary/util/u_math.h:767:27: note: in definition of
macro 'MAX2'
 #define MAX2( A, B )   ( (A)>(B) ? (A) : (B) )
   ^
si_state.c:3291:49: error: 'struct radeon_info' has no member named
'max_sh_per_se'
   unsigned sh_per_se = MAX2(sctx->screen->b.info.max_sh_per_se, 1);
 ^
../../../../src/gallium/auxiliary/util/u_math.h:767:37: note: in definition of
macro 'MAX2'
 #define MAX2( A, B )   ( (A)>(B) ? (A) : (B) )
 ^
si_state.c:3292:46: error: 'struct radeon_info' has no member named
'max_sh_per_se'
   unsigned num_se = MAX2(sctx->screen->b.info.max_sh_per_se, 1);
  ^
../../../../src/gallium/auxiliary/util/u_math.h:767:27: note: in definition of
macro 'MAX2'
 #define MAX2( A, B )   ( (A)>(B) ? (A) : (B) )
   ^
si_state.c:3292:46: error: 'struct radeon_info' has no member named
'max_sh_per_se'
   unsigned num_se = MAX2(sctx->screen->b.info.max_sh_per_se, 1);
  ^
../../../../src/gallium/auxiliary/util/u_math.h:767:37: note: in definition of
macro 'MAX2'
 #define MAX2( A, B )   ( (A)>(B) ? (A) : (B) )

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Tom Stellard  changed:

   What|Removed |Added

  Attachment #98257|0   |1
is obsolete||
 Attachment #104448|0   |1
is obsolete||

--- Comment #87 from Tom Stellard  ---
Created attachment 106006
  --> https://bugs.freedesktop.org/attachment.cgi?id=106006&action=edit
Fix v3

Thanks for tracking down the bug with v2.  Can you try this patch?

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--- Comment #86 from madcatx at atlas.cz ---
You're the man, Pali! I just tried the modified patch and it works for me too.
Glamor, OpenGL and vdpau seem to be working perfectly now!

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Alex Deucher  changed:

   What|Removed |Added

 CC||madcatx at atlas.cz

--- Comment #85 from Alex Deucher  ---
*** Bug 79231 has been marked as a duplicate of this bug. ***

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--- Comment #84 from Pali Roh?r  ---
Created attachment 104448
  --> https://bugs.freedesktop.org/attachment.cgi?id=104448&action=edit
diff between my patch and patch from comment #74

I commented lines

si_pm4_set_reg(pm4, GRBM_GFX_INDEX, SE_INDEX(i) | SH_BROADCAST_WRITES);

and

si_pm4_set_reg(pm4, GRBM_GFX_INDEX, SE_BROADCAST_WRITES);

in patch from comment #74 and my radeon hd 7730 started working :-) glamor and
opengl3 working fine.

In attchment is diff between my patch and patch from comment #74.

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--- Comment #83 from Pali Roh?r  ---
With last version of mesa from git with v2 I'm still getting black screen with
these errors in dmesg:

[   36.661540] radeon :05:00.0: GPU fault detected: 147 0x06625201
[   36.661548] radeon :05:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR  
0x0A4FB8B3
[   36.661551] radeon :05:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x02052001
[   36.661555] VM fault (0x01, vmid 1) at page 172996787, read from CB_CMASK
(82

@Tom Stellard: Can you look at it?

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--- Comment #82 from jyliu  ---
I tried ubuntu 14.04 with 7870xt,no bug happened , seems this issue is fixed in
latest Ubuntu release

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--- Comment #81 from Pali Roh?r  ---
(In reply to comment #74)
> Created attachment 98257 [details] [review]
> Fix v2
> 
> Pali, I have sent this patch to the mailing list for review, can you confirm
> that it fixes the issue for you.

Hello, I applied this patch on top of mesa, but it is not working :-( Xserver
show only black screen. And in dmesg I see this:

[   31.269778] radeon :05:00.0: GPU fault detected: 147 0x09e25201
[   31.269785] radeon :05:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR  
0x0E6B9BCF
[   31.269788] radeon :05:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x02052001
[   31.269792] VM fault (0x01, vmid 1) at page 241933263, read from CB_CMASK
(82)

In Xorg.0.log are no errors.

After killing X in dmesg are these lines:

[  307.388090] radeon :05:00.0: GPU lockup CP stall for more than
276120msec
[  307.388104] radeon :05:00.0: GPU lockup (waiting for 0x0002
last fence id 0x0001 on ring 0)
[  312.832194] pci_pm_runtime_suspend(): radeon_pmops_runtime_suspend+0x0/0xc0
[radeon] returns -22
[  320.270503] detected fb_set_par error, error code: -22

When I start X again, it immediately crash and in Xorg.0.log are these errors:

[   320.199] drmOpenDevice: node name is /dev/dri/card0
[   320.199] drmOpenDevice: open result is -1, (Invalid argument)
[   320.199] drmOpenByBusid: Searching for BusID pci::05:00.0
[   320.199] drmOpenDevice: node name is /dev/dri/card0
[   320.199] drmOpenDevice: open result is -1, (Invalid argument)
...
[   320.270] (EE) RADEON(0): [drm] Failed to open DRM device for
pci::05:00.0: No such file or directory
[   320.270] (EE) RADEON(0): Kernel modesetting setup failed
[   320.270] (II) UnloadModule: "radeon"
[   320.270] (II) Unloading radeon
[   320.270] (EE) Screen(s) found, but none have a usable configuration.
[   320.270] 
Fatal server error:
[   320.270] no screens found

Old patch (which can be applied on older mesa version) worked fine without any
problem. Note that I did not changed kernel, still using same version 3.14-rc1.

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--- Comment #80 from Honza Br?zdil  ---
Created attachment 98377
  --> https://bugs.freedesktop.org/attachment.cgi?id=98377&action=edit
/var/log/Xorg.0.log

I tried also to rebuild kernel with the Tahiti Fix, but still nothing.

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--- Comment #79 from Alex Deucher  ---
(In reply to comment #78)
> (In reply to comment #76)
> > this should be:
> > 
> > +for (i = 0; i < rdev->config.cik.max_texture_channel_caches; i++)
> > +cgts_tcc_disable &= ~(1 << (16 + i));
> 
> Why? This is si_gpu_init().
> 

whoops, I was thinking about CIK at the time.  disregard my comment.

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--- Comment #78 from Michel D?nzer  ---
(In reply to comment #76)
> this should be:
> 
> +for (i = 0; i < rdev->config.cik.max_texture_channel_caches; i++)
> +cgts_tcc_disable &= ~(1 << (16 + i));

Why? This is si_gpu_init().


(In reply to comment #75)
> Created attachment 98258 [details] [review]
> Tahiti Fix
[...]
>+WREG32(CGTS_TCC_DISABLE, cgts_tcc_disable);

My understanding is that this register indicates which TCCs are not functional.
So this line should be replaced by

cgts_tcc_disable |= RREG32(CGTS_TCC_DISABLE);

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--- Comment #77 from Honza Br?zdil  ---
Created attachment 98320
  --> https://bugs.freedesktop.org/attachment.cgi?id=98320&action=edit
/var/log/Xorg.0.log

Hi,

I have the same issue with Radeon HD 7870 XT
(https://bugs.freedesktop.org/show_bug.cgi?id=74154).

I tried to apply the 0001-radeonsi-Program-RASTER_CONFIG-for-harvested-GPUs-v2
patch to mesa 10.1.1, build and install but it doesn't help. Maybe I did
something wrong?


./autogen.sh --prefix=/usr --libdir=/usr/lib64/ --sysconfdir=/etc
--enable-selinux --enable-osmesa --enable-egl --disable-gles1 --enable-gles2
--disable-gallium-egl --disable-xvmc --enable-vdpau
--with-egl-platforms=x11,drm,wayland --enable-shared-glapi --enable-gbm
--enable-opencl --enable-opencl-icd --enable-glx-tls --enable-texture-float=yes
--enable-gallium-llvm --with-llvm-shared-libs --enable-dri --enable-xa
--with-gallium-drivers=svga,radeonsi,swrast,r600,r300,nouveau --disable-dri3
--with-clang-libdir=/usr/lib/
make
sudo make install

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--- Comment #76 from Alex Deucher  ---
(In reply to comment #75)
> Created attachment 98258 [details] [review]
> Tahiti Fix

+for (i = 0; i < rdev->config.si.max_texture_channel_caches; i++)
+cgts_tcc_disable &= ~(1 << (16 + i));

this should be:

+for (i = 0; i < rdev->config.cik.max_texture_channel_caches; i++)
+cgts_tcc_disable &= ~(1 << (16 + i));

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--- Comment #75 from Tom Stellard  ---
Created attachment 98258
  --> https://bugs.freedesktop.org/attachment.cgi?id=98258&action=edit
Tahiti Fix

Hristo, can you try this kernel patch?

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Tom Stellard  changed:

   What|Removed |Added

  Attachment #92941|0   |1
is obsolete||

--- Comment #74 from Tom Stellard  ---
Created attachment 98257
  --> https://bugs.freedesktop.org/attachment.cgi?id=98257&action=edit
Fix v2

Pali, I have sent this patch to the mailing list for review, can you confirm
that it fixes the issue for you.

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--- Comment #73 from Pali Roh?r  ---
@Tom Stellard, @Michel D?nzer: ping

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--- Comment #72 from Pali Roh?r  ---
(In reply to comment #57)
> Created attachment 92941 [details] [review]
> Possible Fix
> 
> Does this patch help?

@Tom Stellard: That patch does not apply anymore on top of mesa git.

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--- Comment #71 from Hristo Venev  ---
rb_config&=0b1100; does not work(=run glxgears) anymore

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--- Comment #70 from Honza Br?zdil  ---
Anything new?

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--- Comment #69 from Pali Roh?r  ---
BUMP!

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--- Comment #68 from Pali Roh?r  ---
@Tom Stellard: Do you have something new about this problem?

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--- Comment #67 from Tom Stellard  ---
(In reply to comment #66)
> @Tom Stellard: Will you prepare new patch for testing? And when you include
> this fix into mesa?

I'm still trying to track down a Tahiti GPU, so I can see what the issue is
there.

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--- Comment #66 from Pali Roh?r  ---
@Tom Stellard: Will you prepare new patch for testing? And when you include
this fix into mesa?

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Michel D?nzer  changed:

   What|Removed |Added

 CC||janinko.g at gmail.com

--- Comment #65 from Michel D?nzer  ---
*** Bug 74154 has been marked as a duplicate of this bug. ***

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--- Comment #64 from Hristo Venev  ---
(sh_per_se | 0x1) /* WTF? Shift widths aren't often used that way in a bitmask.
*/
(1u<64 dwords hangs
- X11 starts
- glxinfo hangs
- glxgears hangs
- weston works

rb_config&=0b1100:
- OpenCL <64 dwords works
- OpenCL >64 dwords hangs
- X11 starts
- glxinfo works
- glxgears works! (~2600 Frames/s)
- My X session hangs (probably chromium)
- weston corrupted
- Any OpenCL (even *a=0;) after OpenGL fails with error about kernel
rejecting CS, nothing on dmesg

Also, GPU reset fails. I used S3 sleep in order to reset the GPU. Sleeps for
<15 seconds may sometimes fail to reset it.

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--- Comment #63 from Pali Roh?r  ---
Ok, so do you need to test something other? Or will you include that patch into
mesa?

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--- Comment #62 from Tom Stellard  ---
(In reply to comment #61)
> Hi Tom Stellard!
> 
> Now I updated kernel to 3.13, drm from git, radeon x driver from git and
> mesa from git with above patch. And patch really fixed problem with glamor
> rendering :-)
> 
> Here is output from glxgears
> 
> $ glxgears 
> Default raster_config = 0x124a
> rb mask = 10
> Final raster_config = 0x124f
> Default raster_config = 0x124a
> rb mask = 10
> Final raster_config = 0x124f
> Running synchronized to the vertical refresh.  The framerate should be
> approximately the same as the monitor refresh rate.
> 270 frames in 5.0 seconds = 53.990 FPS
> ^C
> 
> Tested also with 3.14-rc1 kernel and still working. But with old kernels
> (3.11) there is same problem and not working.

Older kernels don't provide an interface to query the enabled backends.  It
should work with 3.12.x and newer.

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--- Comment #61 from Pali Roh?r  ---
Hi Tom Stellard!

Now I updated kernel to 3.13, drm from git, radeon x driver from git and mesa
from git with above patch. And patch really fixed problem with glamor rendering
:-)

Here is output from glxgears

$ glxgears 
Default raster_config = 0x124a
rb mask = 10
Final raster_config = 0x124f
Default raster_config = 0x124a
rb mask = 10
Final raster_config = 0x124f
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
270 frames in 5.0 seconds = 53.990 FPS
^C

Tested also with 3.14-rc1 kernel and still working. But with old kernels (3.11)
there is same problem and not working.

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--- Comment #60 from Tom Stellard  ---
(In reply to comment #59)
> (In reply to comment #58)
> > Default raster_config = 0x2a00126a
> > rb mask = 255
> > Final raster_config = 0x2a00126a
> 
> The patch didn't modify the raster_config value, so either it's not correct
> yet, or the kernel is providing incorrect information about which backends
> are enabled.

The RB mask is 255, which means all 8 rbs are enabled, so either the kernel is
providing the wrong information or there is something else besides the
raster_config that we need to fix.

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--- Comment #59 from Michel D?nzer  ---
(In reply to comment #58)
> Default raster_config = 0x2a00126a
> rb mask = 255
> Final raster_config = 0x2a00126a

The patch didn't modify the raster_config value, so either it's not correct
yet, or the kernel is providing incorrect information about which backends are
enabled.

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--- Comment #58 from Hristo Venev  ---
OpenCL with big kernels and glxinfo still hang unconditionally.
Default raster_config = 0x2a00126a
rb mask = 255
Final raster_config = 0x2a00126a

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--- Comment #57 from Tom Stellard  ---
Created attachment 92941
  --> https://bugs.freedesktop.org/attachment.cgi?id=92941&action=edit
Possible Fix

Does this patch help?

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--- Comment #56 from Pali Roh?r  ---
It happends with graphic card AMD Radeon HD 7730. In lspci -nn it is identified
by:

05:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Cape Verde LE [Radeon HD 7730/8730] [1002:6837]

So PCI ID should be 0x1002:0x6837.

@Tom Stellard, @Michel D?nzer: Can you look at this problem?

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Pali Roh?r  changed:

   What|Removed |Added

 CC||pali.rohar at gmail.com

--- Comment #55 from Pali Roh?r  ---
I have similar or same problem. I wrote info to this bug:
https://bugs.freedesktop.org/show_bug.cgi?id=71488#c10 If you need some more
info let me know and I will try to provide it. I would like to see working
radonsi driver with my card.

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--- Comment #54 from Michel D?nzer  ---
(In reply to comment #53)
> What is the PCI ID of your GPU?

>From attachment 74859:

> [drm] initializing kernel modesetting (TAHITI 0x1002:0x679E 0x174B:0xE246).

So the PCI ID is 0x679E, a harvested Tahiti I think.

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--- Comment #53 from Tom Stellard  ---
(In reply to comment #52)
> Bump

What is the PCI ID of your GPU?  If you run:

lspci -nn | grep VGA

The PCI ID will be the number at the end of the line inside the brackets.

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--- Comment #52 from Hristo Venev  ---
Bump

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--- Comment #51 from Hristo Venev  ---
Bump

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--- Comment #50 from Michel D?nzer  ---
*** Bug 70778 has been marked as a duplicate of this bug. ***

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--- Comment #49 from Philipp Klein  ---
Created attachment 88014
  --> https://bugs.freedesktop.org/attachment.cgi?id=88014&action=edit
Xorg.log

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